Then use parted to actually create the partition. To add a new partition, you must know the size of the image that you copied so that you can make the new partition start after the live image. You can easily destroy important data if you re-partition the wrong drive. Be very careful when performing this procedure. We also assume that the USB key is recognized by Linux as /dev/sdb and that it only contains the two partitions that are part of the default ISO image ( /dev/sdb1 and /dev/sdb2). In this section, we assume that you have prepared a Kali Live USB Key by following the instructions at Section 2.1.4, 'Copying the Image on a DVD-ROM or USB Key' nd that you have used a USB key big enough to hold the ISO image (roughly 4 GB) and the data of the directories that you want to persist. Setting Up Unencrypted Persistence on a USB Key The data of the persisted directories are stored in the file system that contains the corresponding nf file.

The special value “ / union” enables full persistence of all directories with a union mount, an overlay that stores only the changes when compared to the underlying file system. When this feature is enabled, live-boot will scan all partitions looking for file systems labeled persistence (which can be overridden with the persistence-label=value boot parameter) and the installer will set up persistence of the directories which are listed in the nf file found in that partition (one directory per line). Since modifying the boot menu is a non-trivial task, the Kali live image includes two menu entries by default that enable persistence: Live USB Persistence and Live USB Encrypted Persistence, as shown in Figure 9.1, “Persistence Menu Entries”. To remedy this, you can use a feature of live-boot called persistence, which is enabled when the boot parameters include the persistence keyword. All data stored on the live system and all the changes made are lost when you reboot. The nature of a live system is to be ephemeral. Next, we will discuss the steps required to add persistence to a Kali USB key. Adding Persistence to the Live ISO with a USB Key 9.4.1.

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